May 2019
Beginner to intermediate
296 pages
6h 58m
Japanese
Content preview from IT用語図鑑 ビジネスで使える厳選キーワード256
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
259
関連用語
人物に関連する話
偉人のここがスゴイ！
7
I
T
クロ ード・シャノン
情報理論の父
1916 年アメリカ出身。情報や通信について数学的に考える情報理論の考案者。電気回
路 の 直 列 ・ 並 列と論 理 演 算 の A N D ・O R とを 対 応させ て 計 算 できることを示した だけ で
なく、情 報 の量を表すエントロピーの 概 念を提 唱し、データ圧縮 や符 号化、暗号など、現
在の ICT（情報通信技術）社会に必須の技術について数学的な研究を行った。
20世紀に現代の通信の基礎を築いた！
標本化定理の証明
アナログデータをデジタルデー
タに変換するときのサンプリン
グ間隔について、定量的に示した
定理に標本化定理があり、シャノ
ン氏によって証明された。
情報源符号化定理
情報が持つ価値（情報量）を定義
し、データ圧縮の限界を与える
定理に情報源符号化定理があり、
シャノンの第一基本定理と言わ
れる。
通信路符号化定理
通信路において雑音が含まれて
も、誤り訂正が可能な最大効率に
ついての定理に通信路符号化定
理があり、シャノンの第二基本定
理と言われる。
Keyword
232
▶
くろ ーど ・しゃ の ん
暗号化と復号
……P201
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.